Braiding machine



Dec. 4, 1934. A. GAMBA 1,983,224

BRAIDING MACHINE- Filed April 4, 1934 Patented Dec. 4, 1934 PATENT OFFICE BRAIDING MACHINE Alfred Gamba, Wildegg, Switzerland Application April 4, 1934, Serial No. 718,990 In Switzerland December 28, 1932 1 Claim. (01. 96-19) The present invention relates to improvements in braiding machines and particularly to that class of machines where the stopping of the machine is effected by electrical contacts includedin the same circuit with the tension members which i have dropped at the breaking of the thread.

The invention consists in that said contact are curved band springs arranged eccentrically on an insulated portion of the base of the supporting post the electric current being admitted to said springs through the hollow posts.

Devices of this kind have already been known heretofore, for instancesuch devices, where the dropped tension members closed some contacts and disconnected a mechanical coupling. The device according to the present invention eilects the stopping of the driving mechanism at the breaking of the yarn in a more simple way, so

that the very troublesome changing of the con- 20 structive parts of the machine is saved.

The annexed drawing represents a working example of the invention in Fig. 1 by a side elevation and a section through the supporting post, in Fig. 2 by a plan and in Fig. 3 by a diagram of the electrical connections.

According to the drawing the driving gear 1 forming the head or quoit plate is rotatably held on the supporting post 4 and is arranged above the raceway-rail 2 mounted on a pedestal fast to the base plate 3. This will bring the upper plate 8 of the base portion of the bobbin carrier fixed to the carrier neck 5 and carrying the bobbin stick 6 and the bobbin holder standard 7 to rest upon the upper surface of the quoit plate 1. The bobbin holder standard 7 serves also as a guide for the thread guide 9 and the yarn tension member 10. This latter travels between the said upper plate 8 and stop pin 11, whereby the thread 12 is made to runfrom the bobbin, not shown, through the guide 9, an eyelet 13, the hook 14 of the tension member and the two eyelets 15, 16 to the manufactured braid not shown. A shoulder 17 on the base portion of the supporting post carries at a level with the plate 8 an insulated disk 18 on which is clamped an eccentrically projecting and stationary band spring 19. This spring comes by the rotating quoit plate 1 into contact with the base plate of the tension member 10 guided by the standard 7 after the dropping of the member 10 at the breaking of the thread. The dropped member 10 according to Fig. 3 will close the circuit of an electro-magnet 20 the armature 21 of which will disconnect the one member 22 of a mechanical coupling which is not shown.

The electric current for the band spring contact 19 is admitted by an electric cable 23 which is introduced into the hollow supporting post 4 and by a direct lead connecting the source of current to the base plate 3 of the machine from which plate the current is also transmitted to the bobbin carrier 6.

What I claim as new is:

In a stopping device for braiding machines to become operative atthe breaking of the thread and in combination, a braiding mechanism comprising a bobbin carrier constructed with a bobbin holder standard and a bobbin stick mounted both on the base plate of said bobbin carrier, a notched drive gear formed as a quoit plate and a supporting post for said drive gear, a slidable suspension member held suspended on said bobbin holder standard by the thread and constituting the one contact member of an electric circuit, and an eccentric spring held by said supporting post and constituting the other contact member of an electric circuit, and an electric circuit including besides said contacts a battery and the said elements of the braiding machine. 

